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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10199638 B1

PDFFull Text
Date of Patent:
Feb. 05, 2019

Filed:

Dec. 29, 2015

Composite anode active material, method of preparing the same, and anode and lithium secondary battery including the composite anode active material

Applicants:

Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;

Samsung Sdi Co., Ltd., Yongin-si. Gyeonngi-do, KR;

Inventor:

Jeeeun Yang, Uiwang-si, KR;

Assignees:

SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;

SAMSUNG SDI CO., LTD., Gyeonggi-Do, KR;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Ula C Ruddock

Assistant Examiner:

Matthew W Van Oudenaren

Int. Cl.
CPC ...
H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 4/134 (2010.01); H01M 10/052 (2010.01); H01M 4/1395 (2010.01);
U.S. Cl.
CPC ...
H01M 4/134 (2013.01); H01M 4/0402 (2013.01); H01M 4/1395 (2013.01); H01M 4/366 (2013.01); H01M 4/386 (2013.01); H01M 4/622 (2013.01); H01M 10/052 (2013.01); H01M 2004/027 (2013.01); Y02T 10/7011 (2013.01);
Abstract

A composite anode active material including: a silicon material and a coating layer formed on at least a portion of a surface of the silicon material, wherein the coating layer is chemically bonded to the silicon material, and wherein the coating layer includes a hydrosilylation product of a C4-C30 alkene having a terminal —C(═O)OR group, wherein R is a hydrogen, a C1-C5 alkyl group, a C2-C6 heteroalkyl group, a C6-C12 aryl group, or a C7-C13 arylalkyl group, each of which except hydrogen is substituted or unsubstituted.

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